Siren.



0. S. BURKE.

I SIREN; APPLICATION FILED APR. 28. 5H9.

'- Patented Dec} 2,1919.

housing having an opening injt for deli vet ing the sound, and vanesfastened to said housin radii t ereof in position to be struck by theair emerging from the sound producing I device.

3. A siren having a rotor, a stator, a (lranr- 1 bered h sing inclosingthe stator, said housing being rotatable, and having internal vanesadapted to be impinged by the air emerging from the rotor and'stator fordriving is e housing, said" housing havin a horn communicating with theinside 0. it and leading away from the'housing toward the side thereof.4. A siren having a stator, a rotor within the stator, an imperforatechambered rotatable housing inclosing the rotor and stator, the spacewithin the housing being much eater than the space occupied by the rotorand stator, and the housing being somewhat spherical in form; vanesfastened. to the in nor walls of the housing, said vanes being arrangedat an angle to the air currents emerging from the rotor and stator, anda duct communicating-with the inside of the housing and leadingofftoward one side thereof for amplifying and directing the sound.

5. A sirenhaving a stator, a rotor arranged with a vertical axis andhaving sound apertures in the peripheral Walls, a somewhat s hericalhousing inclosihg the stator and Being spaced therefrom at the sides andtop, vanes secured to'the inside of the housing and rising upward abovethe top ofthe stator, said vanes being arranged at an oblique an le withrespect to the radii of the housing, t e housing having an opening atthe top and a horn leading laterally from said openin for directing thesound.

6. In com ination, a siren having a rotor revoluble about a verticalaxis, a motor having a shaft for supporting and revolving said rotor, astator inclosing said rotor, the stator and rotor having sound aperturesin the peripheral walls, a somewhat spherical hens and arranged at anangle to the incense ing placed around and over the stator." andprovided wit internal vanes arranged 1101i radially, the housing havingan opening at the top approximatelyin line with-the axis of the rotor;means for supporting the housing and permitting it to rotate about ave'rti cal axis coincident with the axis of the rotor, the housinghaving an openin in itfor the escape of sound, and a souu duct leadingfrom said 0 ening.

7. In com ination, a siren having a rotor, a stator inclosing the rotor,the rotor having a vertical axis, supporting means for the stat-or, ahousin inclosing the stator and rotor, an anti-friction bearing for thehousing concentric with the rotor, vanes on the inside of the housingarranged non-radially for deflecting the air emerging from the rotor andstator, and thereby causing the housing to revolve,-said housing havinan opening in it for the emission of 501111 8, In combination, a sirenhaving a rotor, a stator .iuclosing the rotor, the rotor having avertical axis, supporting means for the the stator and rostator, a.housing inclosm tor, an antl-frict on hearing tor the houslng concentricwith the rotor, vanes on the mside of the housing arranged non-radiallyfor deflecting the air emerging from the rotor and stator, and therebycausing the hens ing to revolve, said housing having an opening in itfor the emission of sound;-s'a1d opening being locatedat the center ofthe top of the housing, and having a horn leading laterally from it foramplifying and di-- rectiiig the sound.

9. e n combination, a revoluble megaphone,

siren having a stator and a rotor having sound holes in the sidesthrough whichai-r is forced by the centrifugal action of the rotor, andmeans adapted to be actuated by the air emerging from the sound holesfor revolving said mega hone.

In witness whereo I have scribed my name.

hereunto subosnnn'r s. Bunnie.

